MY CART (5)

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: R

There are no items in this cart.
Continue Shopping

X

“Hurray! You have won the gift voucher. Redeem your points now."

X

                   

1. The blue complex formed on addition of conc. NH4OH
solution to a Cu2+ salt solution has the s tructure?
(a) [Cu(NH4)4]2+ (b) [Cu(NH3)2]2+
(c) [Cu(NH3)4]2+ (d) [Cu(NH4)2]2+
2. Sodium thiosulphate is used in photography to
(a) Reduce silver bromide to silver
(b) Convert metallic silver to silver salt
(c) Remove and decompose AgBr as a soluble silver
thiosulphate complex
(d) Remove reduce silver
3. The black compound formed during the reaction between
sodium thiosulphate and silver nitrate is
(a) Silver thiosulphate (Ag2S2O3)
(b) Silver sulphide (Ag2S)
(c) Sliver sulphate (Ag2SO4)
(d) Silver sulphite (Ag2SO3)
4. Parke’s process is used
(a) To extract Ag using NaCN
(b) To extract Cu using CuFeS2
(c) To extract Ag from argentiferrous lead
(d) To extract Ag by forming amalgam
5. The lanthanides contraction is responsible for the fact that
(a) Zr and Y have about the same radius
(b) Zr and Nb have similar oxidation state
(c) Zr and Hf have about the same radius
(d) Zr and Zn have the same oxidation state
6. Which of the following element is responsible for oxidation of
water of O2 in biological process?
(a) Fe (b) Mn
(c) Cu (d) Mo
7. In order to prepare one litre normal solution of KMNO4, how
many grams of KMNO4 are required if the solution is to be
used in acidic medium for oxidation?
(a) 158 g (b) 62.0 g
(c) 31.6 g (d) 790 g
8. The alloy best suited for making metre scales is
(a) Stainless steel (b) Invar
(c) Alnico (d) Tungsten steel
9. Molecular formula of corrosive sublimate is
(b) H (b) Hg2Cl2
(d) HgS (d) HgCl
10. Wrought iron :
(a) Pure iron with 0.1 to 0.2% C
(b) Pig iron
(c) An alloy of steel
(d) Impure sulphide ore iron
11. In the manufacture of iron from haematite, limestone is
added to act as :
(a) Flux (b) Slag
(c) A reducing agent (d) An oxidizing agent
12. An extremely hot copper wire reacts with steam to give
(a) CuO (b) Cu2O
(c) Cu2O2 (d) CuO2
13. Copper displaces which of the metal from their salt solution?
(a) AgNO3 (b) ZnSO4
(c) FeSO4 (d) All of these
14. The colour of FeSO4.(NH4)2SO4.6H2O is
(a) Red (b) White
(c) Blue (d) Green
15. A white solid halide of mercury forms a black mixture
NH4OH. The halide is
(a) HgCl2 (b) HgCl2
(c) Hg2Cl2 (d) Hg2Cl2
16. Spelter is
(a) Impure Cu (b) Impure Zn
(c) ZnO (d) CuO
17. 18 carat gold contains
(a) 18% Gold (b) 24% Gold
(c) 75% Gold (d) 60% Gold
18. Colourless solutions of the following four salts are palced
separately in four different test tubes and a strip of copper is
dipped in each one these. Which solution will turn blue?
(a) KNO3 (b) AgNO3
(c) Zn(NO3)2 (d) ZnSO4
19. Which of the following is used in the preparation of chlorine?
(a) Only MnO2 (b) Only KMnO4
(c) Both MnO2 and KMnO4 (d) Either MnO2 or KMnO4

3 years ago

Share

Answers : (1)

                                        Answers :

1. b
2. a
3.Silver thiosulphate
4.To extract Ag from argentiferrous lead
5.Zr and Hf have about the same radius
6. Fe
7. 62 gm
8. Steel
9. Hg Cl2
10.Pure iron with 0.1 to 0.2% C
11. c
12. d
13. ZnSO4
14. Green
15. d
16. impure zinc
17. 75% gold
18.a
19. only MnO2


Thank You
Ruchi
Askiitians Faculty

one year ago

Post Your Answer

More Questions On Inorganic Chemistry

Ask Experts

Have any Question? Ask Experts

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!!
Click Here for details
trick for learning periodic table faster
 
 
are u an indian origin boy(Hindi) or not indian(english)
 
grenade one month ago
 
Period 1 – H, HeThis is pretty simple.Mnemonics – Hi HelloPeriod 2 – Li, Be, B, C, N, O, F, NeMnemonics – Little Betty Became Charlie’s Number One Freind and NeighbourPeriod 3 – Na, Mg, Al,...
 
grenade one month ago
 
youtube.com/watch?t=166&v=zUDDiWtFtEM best here is the song
 
grenade one month ago
When PCl5 react with Ch3Nh2 to form a crystalline compund in which how many P-N-P linkages are present ?
 
 
sec 2 +tan 2 =3
 
2015 years ago
 
I couldn’t find the reaction anywhere, one site says that the product formed will be CH3N=PCl2 while another site where PCl5 is reacted with NH4Cl (not NH2CH3 ) gives (Cl3PNPCl3) + (PCl6) - ...
 
15 hours ago
What is the easiest way of understanding schrodinger wave equation derivation …. coz my mathematical knowledge is very weak....
 
 
You don’t have to worry about the derivation if you are studying in 12 th class or below. But if you really want to understand properly, you should have a good knowledge of...
  img
Naveen Kumar 8 months ago
 
sir i m a graduating first year student...
 
Rashmi Rai 8 months ago
Q . WHICH BEHAVES AS BOTH AS NUCLEOPHILE AND ELECTROPHILE?
 
 
answer is c because of the polarity os C-N bond carbon develops some delta positive charge and nitrogen as delta negative charge ,therefore it can act as electophile from Carbon and act as...
 
daksh 8 months ago
 
you r wrong the answer is (C)
 
Bharat Makkar 8 months ago
 
THANKS.....THATS RIGHT
 
Bharat Makkar 8 months ago
What is meant by positive sol and negative sol?
 
 
One of the most important properties of colloidal solutions is that colloidal particles posses a definite type of electrical charge. In a particular colloidal solution, all the colloidal...
  img
Avinash 21 days ago
hyperconjugation occurs in: please expain the answer
 
 
in c option you can draw its resonating structure and then hyperconjugation is possible wheras in other cases aromaticity will be disturbed.
 
daksh 8 months ago
 
THE NECCESARY CONDITION FOR HYPERCONJUGATION TO OCCUR IS PRESENCE OF (ALPHA) – HYDROGEN WHICH ARE ONLY PRESENT IN OPTION (C). ALPHA HYDROGENS ARE THOSE WHICH ARE ATTACHED TO THE CARBON ATOM ...
 
Bharat Makkar 8 months ago
 
thanks for the reply,but the answer is C.
 
HARSHIT SHARMA 11 months ago
View all Questions »